Facilitating Performance Optimization of RF PCB Designs by using Parametric Finite-Element Component Models

John Rohde and Thomas S. Toftegaard


RF circuit modelling, Finite-element methods, PCB design, SMD components, Simulation


Novel parametric finite-element models are provided for discrete SMD capacitors and inductors in the frequency range 100 MHz to 4 GHz. The aim of the models is to facilitate performance optimization and analysis of RF PCB designs integrating these SMD components with layout geometries such as antennas and PCB traces. The models presented are benchmarked against real-life measurements and conventional circuit models. Furthermore, two example parallel-resonance circuits are designed based on interpolation of the results and validated by measurements in order to demonstrate the accuracy of the presented modelling approach.

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